CN205423759U - Flexible sprocket of integral low noise - Google Patents
Flexible sprocket of integral low noise Download PDFInfo
- Publication number
- CN205423759U CN205423759U CN201520993556.5U CN201520993556U CN205423759U CN 205423759 U CN205423759 U CN 205423759U CN 201520993556 U CN201520993556 U CN 201520993556U CN 205423759 U CN205423759 U CN 205423759U
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- China
- Prior art keywords
- sprocket
- sprocket body
- wheel hub
- low noise
- hole
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Abstract
The utility model discloses a flexible sprocket of integral low noise, including sprocket body and wheel hub, the periphery wall middle part of sprocket body is equipped with the sprocket, just the suit is equipped with and is located respectively on the sprocket body the sprocket both sides and be used for with the packing ring of the link joint of chain contact, the packing ring adopts wear -resisting rubber to become, the center of sprocket body is equipped with the central through hole, be equipped with the internal spline that gradually bursts at the seams in the central through hole, be equipped with on wheel hub's the periphery wall with internal spline's the external splines that gradually bursts at the seams gradually bursts at the seams, gradually burst at the seams the internal spline with it is equipped with the fit clearance gradually to burst at the seams between the external splines, pack in the fit clearance be equipped with be used for with the sprocket body with wheel hub connects flexible elastomer as an organic whole, the both sides of sprocket body still are equipped with respectively and are used for preventing wheel hub is along axial displacement's fixed apron.
Description
Technical field
This utility model relates to a kind of sprocket wheel, concrete for a kind of monoblock type low noise flexibility sprocket wheel.
Background technology
Chain conveyer is a kind of kind of drive of the driven sprocket that the motion and power with the drive sprocket of special tooth profile are delivered to have special tooth profile by chain.Chain conveyer has many advantages, and compared with V belt translation, nonelastic slip and skidding, average ratios is accurate, reliable operation, and efficiency is high；Transmission power is big, and overload capacity is strong, and the transmission size under identical operating mode is little；Required tensile force is little, acts on the pressure on axle little；Can at high temperature, humidity, many dirt, have in the adverse circumstances such as pollution and work.Chaindriven shortcoming mainly has: the transmission being simply possible to use between two-parallel axis；Cost is high, easy to wear, easily extends, and transmission stability is poor, can produce additional dynamic load, vibrate, impacts and noise, be not preferably used in the most reverse transmission during operating.
Wherein, sprocket wheel axial plane profile of tooth both sides are arc-shaped, in order to chain link enters and exits engagement.Sprocket should have enough contact strengths and wearability, therefore how thermally treated the flank of tooth is.The engagement number of times of minor sprocket is more than big sprocket wheel, and suffered impulsive force is also big, therefore material therefor typically should be better than big sprocket wheel.Small-diameter sprocket can be made into solid formula；The sprocket wheel of intermediate diameters can be made into orifice-plate type；The sprocket wheel being relatively large in diameter may be designed to combination type, if the gear teeth lost efficacy because of abrasion, and replaceable gear ring.Although existing sprocket wheel disclosure satisfy that use requirement to a certain extent, but is when chain engages, the most inevitably there is the phenomenons such as bite, cause Chain conveyer to there is the problems such as bigger noise, and chain easily comes off.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of monoblock type low noise flexibility sprocket wheel, can not only alleviate chaindriven bite phenomenon, reduce noise, and structural strength is higher.
For reaching above-mentioned purpose, this utility model following technical scheme of offer:
A kind of monoblock type low noise flexibility sprocket wheel, including sprocket body and wheel hub, being provided with in the middle part of the periphery wall of described sprocket body on sprocket, and described sprocket body to overlap to be equiped with and lay respectively at described sprocket both sides and for the packing ring contacted with the carrier bar of chain, described packing ring uses abrasive rubber to make；The center of described sprocket body is provided with central through hole, is provided with involute inner spline in described central through hole, and the periphery wall of described wheel hub is provided with the involute outer spline coordinated with described involute inner spline；It is provided with fit clearance between described involute inner spline and described involute outer spline, fills in described fit clearance and be provided with the flexible elastomer for described sprocket body and described wheel hub being connected as one；The both sides of described sprocket body further respectively have the securing cover plate for preventing described wheel hub from moving in the axial direction.
Further, described flexible elastomer uses polymer rubber alloy or soft metal coating to make.
Further, the width of described fit clearance is 0.5-2mm.
Further, on described securing cover plate, annular is laid with connection through hole, and described sprocket body is provided with screwed hole with the described through hole one_to_one corresponding that is connected.
Further, the periphery wall of described packing ring is provided with radially outer arc convex with the teeth groove one_to_one corresponding between adjacent two described sprockets.
The beneficial effects of the utility model are:
Monoblock type low noise flexibility sprocket wheel of the present utility model, it is set to sprocket body and wheel hub by split, and in the fit clearance between sprocket body and wheel hub, flexible elastomer is set, when sprocket wheel engages with chain, when there is bite with chain in sprocket wheel, by the deformation of flexible elastomer, can effectively alleviate bite, and correspondingly reduce noise；On the other hand, by arranging the packing ring using abrasive rubber to make, being when chain engages, the carrier bar of chain directly contacts cooperation with abrasive rubber, it is possible to is prevented effectively from rigid collision, reduces noise further；It is fixedly installed securing cover plate by the two ends in sprocket body, it is possible to effectively prevent wheel hub from moving in the axial direction, i.e. can improve structural strength.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearer, this utility model provides drawings described below to illustrate:
Fig. 1 is the structural representation of this utility model monoblock type low noise flexibility sprocket wheel embodiment；
Fig. 2 is the left view of Fig. 1.
Detailed description of the invention
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art can be better understood from this utility model and can be practiced, but illustrated embodiment is not as to restriction of the present utility model.
As it is shown in figure 1, be the structural representation of this utility model monoblock type low noise flexibility sprocket wheel embodiment.The monoblock type low noise flexibility sprocket wheel of the present embodiment, including sprocket body 1 and wheel hub 2, sprocket 3 it is provided with in the middle part of the periphery wall of sprocket body 1, and set is equiped with and lays respectively at sprocket 3 both sides and for the packing ring 10 contacted with the carrier bar of chain in sprocket body 1, packing ring 10 uses abrasive rubber to make, it is provided with radially outer arc convex 12 with teeth groove 11 one_to_one corresponding between adjacent two sprockets 3, it is possible to be effectively increased the service life of packing ring 10 on the periphery wall of the packing ring 10 of the present embodiment.
The center of sprocket body 1 is provided with central through hole, is provided with involute inner spline 4 in central through hole, and the periphery wall of wheel hub 2 is provided with the involute outer spline 5 coordinated with involute inner spline 4.It is provided with fit clearance between involute inner spline 4 and involute outer spline 5, fills in fit clearance and be provided with the flexible elastomer 6 for sprocket body 1 and wheel hub 2 being connected as one；The both sides of sprocket body 1 further respectively have the securing cover plate 7 for preventing wheel hub 2 from moving in the axial direction.
Further, flexible elastomer 6 uses polymer rubber alloy or soft metal coating to make, and the width of fit clearance is 0.5-2mm, and the flexible elastomer 6 of the present embodiment uses polymer rubber alloy to make, and the width of fit clearance is 1mm.
Further, on securing cover plate 7, annular is laid with connection through hole 8, in sprocket body 1 be connected through hole 8 one_to_one corresponding and be provided with screwed hole 9.
The monoblock type low noise flexibility sprocket wheel of the present embodiment, it is set to sprocket body and wheel hub by split, and in the fit clearance between sprocket body and wheel hub, flexible elastomer is set, when sprocket wheel engages with chain, when there is bite with chain in sprocket wheel, by the deformation of flexible elastomer, can effectively alleviate bite, and correspondingly reduce noise；On the other hand, by arranging the packing ring using abrasive rubber to make, being when chain engages, the carrier bar of chain directly contacts cooperation with abrasive rubber, it is possible to is prevented effectively from rigid collision, reduces noise further；It is fixedly installed securing cover plate by the two ends in sprocket body, it is possible to effectively prevent wheel hub from moving in the axial direction, i.e. can improve structural strength.
Embodiment described above is only the preferred embodiment lifted by absolutely proving this utility model, and protection domain of the present utility model is not limited to this.The equivalent that those skilled in the art are made on the basis of this utility model substitutes or conversion, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (5)
1. a monoblock type low noise flexibility sprocket wheel, it is characterized in that: include sprocket body and wheel hub, it is provided with sprocket in the middle part of the periphery wall of described sprocket body, and set is equiped with and lays respectively at described sprocket both sides and for packing ring contact with the carrier bar of chain in described sprocket body, described packing ring employing abrasive rubber is made；The center of described sprocket body is provided with central through hole, is provided with involute inner spline in described central through hole, and the periphery wall of described wheel hub is provided with the involute outer spline coordinated with described involute inner spline；It is provided with fit clearance between described involute inner spline and described involute outer spline, fills in described fit clearance and be provided with the flexible elastomer for described sprocket body and described wheel hub being connected as one；The both sides of described sprocket body further respectively have the securing cover plate for preventing described wheel hub from moving in the axial direction.
Monoblock type low noise flexibility sprocket wheel the most according to claim 1, it is characterised in that: described flexible elastomer uses polymer rubber alloy or soft metal coating to make.
Monoblock type low noise flexibility sprocket wheel the most according to claim 1, it is characterised in that: the width of described fit clearance is 0.5-2mm.
Monoblock type low noise flexibility sprocket wheel the most according to claim 1, it is characterised in that: on described securing cover plate, annular is laid with connection through hole, and described sprocket body is provided with screwed hole with the described through hole one_to_one corresponding that is connected.
5. according to the monoblock type low noise flexibility sprocket wheel described in any one of claim 1-4, it is characterised in that: it is provided with radially outer arc convex with the teeth groove one_to_one corresponding between adjacent two described sprockets on the periphery wall of described packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520993556.5U CN205423759U (en) | 2015-12-04 | 2015-12-04 | Flexible sprocket of integral low noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520993556.5U CN205423759U (en) | 2015-12-04 | 2015-12-04 | Flexible sprocket of integral low noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423759U true CN205423759U (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520993556.5U Expired - Fee Related CN205423759U (en) | 2015-12-04 | 2015-12-04 | Flexible sprocket of integral low noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205423759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112824711A (en) * | 2019-11-21 | 2021-05-21 | 广州汽车集团股份有限公司 | Crankshaft belt pulley of vehicle and engine and production process thereof |
-
2015
- 2015-12-04 CN CN201520993556.5U patent/CN205423759U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112824711A (en) * | 2019-11-21 | 2021-05-21 | 广州汽车集团股份有限公司 | Crankshaft belt pulley of vehicle and engine and production process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20161204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |